[new feature] normalize size of all icons (#292)

* [bugfix] CouponList always show empty info

* [bugfix] add click feedback of buttons in components

* [Doc] add custom theme document

* [new feature] Notice bar support more props

* [bugfix] PullRefresh test cases

* [bugfix] unused NoticeBar style

* [bugfix] Swipe width calc error

* [Doc] english document of all action components

* [Doc] change document site path to /zanui/vant

* [Doc] fix

* [bugfix] uploader style error

* [bugfix] tabs document demo

* [new feature] Cell support vue-router target route

* [bugfix] add cell test cases

* update yarn.lock

* [bugfix] Tabbar cann't display info when use icon slot

* [Doc] update document title

* [bugfix] Dialog should reset button text when showed

* [new feature] CouponList add showCloseButton prop

* [new feature] Swipe add 'initialSwipe' prop

* [bugfix] NoticeBar text disappeared when page back

* [new feature] ImagePreview support startPosition

* fix: improve imagePreview test cases

* [bugfix] Steps style error when has more than 4 items

* [new feature] normalize size of all icons

packages/vant-css/package.json

@@ -10,14 +10,17 @@
   ],
   "scripts": {
     "build": "gulp build",
-    "build:icons": "sh scripts/build.sh"
+    "build:icons": "gulp icon-font"
   },
   "license": "MIT",
   "devDependencies": {
     "autoprefixer": "^7.1.4",
     "gulp": "^3.9.1",
     "gulp-clean-css": "^3.9.0",
+    "gulp-iconfont": "^9.0.2",
+    "gulp-iconfont-css": "^2.1.0",
     "gulp-postcss": "^7.0.0",
+    "md5-file": "^3.2.3",
     "postcss-easy-import": "^3.0.0",
     "precss": "^2.0.0"
   }